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3 years ago

15

While the earth's orbit (path) about the sun is slightly elliptical, it

1 answer:

larisa [96]3 years ago

3 0

The circumference= 186000000π miles and the speed or the earth is 7750000π miles per hour.

Step-by-step explanation:

Radius (r) = 93000000 miles

a) circumference= 2πr

= 2π(93000000) miles

= 186000000π miles

b) speed = distance / time

Here distance is the circumference and time is 24hrs because if the earth completes 1 revolution around the sun in 24hrs.

Speed = 186000000π/24

= 7750000π miles per hour

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Charlotte has 12 t-shirts .one fourth of her t-shirts are green. How many of Charlotte's t-shirts at are green?

irina1246 [14]

We have an equation: ?/12= 1/4

Cross multiply:
4*?= 1*12
⇒ ?= 1*12/4= 3

3 of Charlotte's T-shirts are green~

7 0

3 years ago

Can I get some help

ra1l [238]

Answer:

The answer to your question is below

Step-by-step explanation:

The answers for 1, 3 and 4 are given in decimals and roots.

1) $\sqrt{2^{2} - 4(3)(-6)}$

$\sqrt{4 + 72}$

$\sqrt{76}$

$2\sqrt{19} = 8.71$

2) $\sqrt{1^{2} -4(1)(-6)}$

$\sqrt{1 + 24}$

$\sqrt{25}$

5

3) $\sqrt{1^{2} - 4(1)(-11)}$

$\sqrt{1 + 44}$

$\sqrt{45}$

$3\sqrt{5} = 6.7$

4) $\sqrt{8^{2} -4(5)(2)}$

$\sqrt{64 - 40}$

$\sqrt{24}$

$2\sqrt{6} = 4.89$

5 0

3 years ago

If M is the centroid of triangle GHI, HL=45, JI=63, and KG=60, find the missing measures

AysviL [449]

Answer:

Part a) $ML=15\ units$

Part b) $HM=30\ units$

Part c) $JM=21\ units$

Part d) $MI=42\ units$

Part e) $GM=40\ units$

Part f) $MK=20\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

A <u><em>centroid</em></u> of a triangle is the point where the three medians of the triangle meet. A median of a triangle is a line segment from one vertex to the mid point on the opposite side of the triangle.

The centroid is located two thirds of the distance from any vertex of the triangle

Part a) Find ML

we have

$HL=45\ units$

we know that

$ML=\frac{1}{3}HL$

substitute the given value

$ML=\frac{1}{3}(45)$

$ML=15\ units$

Part b) Find HM

we have

$HL=45\ units$

we know that

$HM=\frac{2}{3}HL$

substitute the given value

$HM=\frac{2}{3}(45)$

$HM=30\ units$

Part c) Find JM

we have

$JI=63\ units$

we know that

$JM=\frac{1}{3}JI$

substitute the given value

$JM=\frac{1}{3}(63)$

$JM=21\ units$

Part d) Find MI

we have

$JI=63\ units$

we know that

$MI=\frac{2}{3}JI$

substitute the given value

$MI=\frac{2}{3}(63)$

$MI=42\ units$

Part e) Find GM

we have

$KG=60\ units$

we know that

$GM=\frac{2}{3}KG$

substitute the given value

$GM=\frac{2}{3}(60)$

$GM=40\ units$

Part f) Find MK

we have

$KG=60\ units$

we know that

$MK=\frac{1}{3}KG$

substitute the given value

$MK=\frac{1}{3}(60)$

$MK=20\ units$

6 0

3 years ago

Jessica is selling girl scout cookies and recorded how many she sold in one afternoon. She sold Thin Mints, Trefoils, and Samoas

Butoxors [25]

Answer:

total # of boxes sold = 90

Step-by-step explanation:

54 is 60% of total #

54 = .6x

x = 54/0.6 = 90

7 0

2 years ago

What two numbers multiplies to 16 and adds to -17?

stepan [7]

-16 and -1 multiply to be 16, but add to be -17

4 0

3 years ago